Fuzzy Sets and Systems

Co-Editors-in-Chief: B. De Baets Dept. of Mathematical Modeling, Statistics and Bioinformatics (KERMIT), Biometrics and Process Control, Universiteit Gent, Coupure links 653, B-9000 Gent, Belgium, D. Dubois IRIT-CNRS, Université Paul Sabatier (Toulouse), 118 route de Narbonne, 31062 Toulouse, France, E. Hüllermeier Dept. of Mathematics and Computer Science, Philipps-Universität Marburg, Hans-Meerwein-Str. (Lahnberge), 35043 Marburg, Germany, Former Editors in Chief H.J. Zimmermann , H. Prade , Honorary Editor: L.A. Zadeh Dept. of Electrical Engineering and Computer Sciences (EECS), Div. of Computer Science, University of California at Berkeley, Berkeley, CA 94720-1776, USA, Advisory Editors: J.C. Bezdek Div. of Computer Science, University of West Florida, Pensacola, FL 32415, USA, Y.-M. Liu President Office, Sichuan University, Chengdu, 610064 Sichuan, China, E. Sanchez LIF & Fac. de Medicine, Université Aix-Marseille, 27 Bd Jean Moulin, 13385 Marseille, France, M. Sugeno Fac. of Information Science, Dosisha University, 1-3 Miyakodani Tatara, Kyonatabe, 610-0394 Kyoto, Japan, E. Trillas Edificio Cientifico-Tecnologico, European Centre for Soft Computing, Calle Gonzalo Gutierrez Quiros, 33600 Mieres (Austurias), Spain, Area Editors: B. Bede Redmond, WA, USA, R. Belohlavek Olomouc, Czech Republic, I. Bloch Paris, France, A.M. Colubi Oviedo, Spain, J. Fodor Budapest, Hungary, J.L. García-Lapresta Valladolid, Spain, L. Godo Madrid, Spain, S. Gottwald Leipzig, Germany, T-M. Guerra Valenciennes, France, J. Gutierrez Garcia BIlbao, Spain, K. Hirota Yokohama, Japan, E. Hüllermeier Marburg, Germany, M. Inuiguchi Osaka, Japan, F. Klawonn Wolfenbüttel, Germany, R. Kruse Magdeburg, Germany, W.A. Lodwick Denver, CO, USA, R. Mesiar Bratislava, Slovakia, D. Naso Bari, Italy, E. Pap Novi Sad, Serbia, M. Reformat Edmonton, AB, Canada, S.E. Rodabaugh Youngstown, OH, USA, T. Sudkamp Dayton, OH, USA, J.L. Verdegay Granada, Spain, S. Zadrozny Warsaw, Poland, D. Zhang Chengdu, China, Book Review Editor: A. Gegov Portsmouth, UK, Editorial Board: S. Aguzzoli Milano, Italy, P. Angelov Lancaster, UK, R. Babuska Delft, Netherlands, M. Banerjee Kanpur, India, G. Beliakov Burwood, VIC, Australia, T. Bilgic Istanbul, Turkey, U. Bodenhofer Linz, Austria, P. Bonissone Schenectady, NY, USA, B. Bouchon-Meunier Paris, France, Y.-K. Cai Beijing, China, T. Calvo Alcalá de Henares, Spain, C. Carlsson Abo, Finland, K. Cechlarova Kosice, Slovakia, B.-S. Chen Hsinchu, Taiwan, ROC, G. Chen Beijing, China, P Cintula Prague, Czech Republic, M. Ciric Niš, Serbia, I. Couso Oviedo, Spain, G. De Tré Gent, Belgium, M. Demirci Antalya, Turkey, T. Denoeux Compiegne, France, A. Di Nola Baronissi (SA), Italy, M. Frigon Montreal, QC, Canada, H. Frigui Louisville, KY, USA, S. Galichet Annecy le Vieux, France, M.A. Gil Oviedo, Spain, F. Gomide Campinas SP, Brazil, M. Grabisch Paris, France, S. Greco Catania, Italy, M. Hanss Stuttgart, Germany, F. Herrera Granada, Spain, E. Herrera-Viedma Granada, Spain, U. Höhle Wuppertal, Germany, H. Ishibuchi Osaka, Japan, J. Kacprzyk Warsaw, Poland, W. Karwowski Orlando, FL, USA, A. Kasperski Wroclaw, Poland, U Kaymak Eindhoven, Netherlands, J.M. Keller Columbia, MO, USA, E.P. Klement Linz, Austria, G.J. Klir Binghamton, NY, USA, L.T. Kóczy Budapest, Hungary, W.J. Kotzé Cape Town, South Africa, T. Kroupa Prague, Czech Republic, T. Kubiak Poznan, Poland, H.L. Larsen Aalborg, FO, Denmark, J. Lawry Bristol, England, UK, K.S. Leung Hong Kong, China, C.-J. Liau Taipei, Taiwan, ROC, R. Lowen Antwerpen, Belgium, T. Marchant Gent, Belgium, J.-L. Marichal Luxembourg, Luxembourg, R. A. Marques Pereira Trento, Italy, T. Martin Bristol, UK, S. Miyamoto Ibaraki, Japan, J.N. Mordeson Omaha, NE, USA, T. Murofushi Yokohama, Japan, M. Navara Prague, Czech Republic, H.T. Nguyen Las Cruces, NM, USA, V. Nóvak Ostrava, Czech Republic, N. R. Pal Calcutta, India, S.K. Pal Calcutta, India, G. Pasi Milano, Italy, W. Pedrycz Edmonton, AB, Canada, K. Peeva Sofia, Bulgaria, I. Perfilieva Ostrava 1, Czech Republic, F.E. Pet